Hello everybody.

Maybe i will get a Helix 7 Mega SI gen3 and an i have the 1.8 reefmaster version. I have some questions.
Does this version support Humminbird chirp and mega imaging frequencies ?

Since a long time i used a lowrance sonar so now i have only lowrance datas.
Can i export all kind of map (deep, composition, sidescan) in this Humminbird unit ?

You can use the Humminbird data to create maps and sidescan mosaics within ReefMaster, but it is not possible to export a map from ReefMaster that can be displayed on the Humminbird unit.

so i can't export lowrance data in hummininbird unit even if i select humminbird for generation.
Or is it just a version problem ? If i take the new reefmaster can i solve the problem ?

I'm not sure exactly what you are asking.
You can use Lowrance and Humminbird data within ReefMaster to create maps and sidescan mosaics. You can combine the data too, if you wish, in both maps and mosaics. What you can't do is export a map or sidescan mosaic from ReefMaster and have that display on your Humminbird unit. Humminbird do not have an open mapping format, or any mapping tools that we can use to create compatible maps.

Ok l understand if i want to continue to export map i have to purshase an other lowrance fish finder. Does the hds carbon support by the 1.8 version? At first time i don t need the 3d